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June 30, 2008 <br />• Two - Dimensional Hydraulic Models (River2D). <br />• Indicators of Hydrologic Alteration (IHA). <br />Depending upon which model is selected, additional modeling may be required. If computer <br />modeling is needed, the participants will select one or more programs by July 15, 2008. Fish <br />surveys will be performed using the "mark and recapture" method. <br />2. Recreational f Floatboatina) <br />The BLM's Eligibility Study identifies Segments 4 through 7 as possessing recreational <br />(floatboating) ORVs. To ensure the recommended flows for Segments 4 through 7 do not <br />negatively impact the floatboating ORVs, the Stakeholder Group commits to collect data to <br />improve the knowledge base for these segments of the Colorado River. <br />Existing Information: <br />In the fall of 2007, American Whitewater conducted an online survey for the Upper Colorado <br />River basin to examine the flow needs for recreational boaters. These surveys offered <br />evidence about various flows necessary for kayaking and other recreational floatboating <br />opportunities. <br />The participants will review the Eagle County report and Grand County plan to examine <br />these analyses as they relate to the flows associated with recreational opportunities. The <br />studies were only recently released and need to be reviewed to determine whether they <br />satisfy the data needs for the Management Plan Alternative and whether data gaps remain. A <br />review of these plans will be conducted by June 30, 2008 to determine if additional data will <br />be collected. <br />There are a number of additional sources of information on recreational flow needs: <br />• BLM information. <br />• Guidebooks. <br />• Websites such as Eddyflower.com and Mountainbuzz.com. <br />• Existing data from private boater survey conducted by American Whitewater. <br />• Commercial rafting permit records. <br />• Data and analysis used for designing and constructing the Glenwood Springs <br />Whitewater Park. <br />• Arizona State University User Preference Survey for the Upper Colorado River. <br />Data Gaps: <br />Several data gaps need to be addressed: <br />• Commercial rafting is under - represented in the 2007 American Whitewater survey. <br />• Drift fishing is under- represented in existing data sources. There are several methods <br />to obtain this data, such as additional surveys and a professional assessment. <br />-16- <br />